May 2018

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AWTA Product Testing has gained National Association of Testing Authorities (NATA) accreditation for a Heat Flow Meter Apparatus according to the following scope.

Determination of thermal properties of materials:

Thermal conductivity

-Measurement of thermal conductivity of samples at temperatures ranging from 5 to 650C with a thermal resistance of not less than 0.01 m2KW-1 with least uncertainties of measurement of 8.4% in the range 0.0084 to 0.85 Wm-1K-1 and 0.0084 to 8.40 m2PaW-1, by the methods of ISO 11092 (Textiles) and ASTM F1868

-Measurement of thermal conductivity of samples in the range of 0.01 - 0.2 W/mK at thicknesses of 2 to 200mm with least uncertainties of measurement of 3.9% by the methods of:

- Measurement of physical dimensions of thermal insulation by the methods of: ASTM C167 Thickness and Density of Blanket or Batt Thermal Insulations

- Tests and examinations for compliance with AS/NZS 4859.1 Materials for the thermal insulation of buildings, Clause 2.3.2 for the following material types: Formed shapes, Formed in situ, Low density fibrous materials, and Reflective membrane

-Tests and examinations for compliance with AS/NZS 4859.1 Materials for the thermal insulation of buildings, Section 3 Packaging and labelling

NATA granted accreditation on 22nd November 2013 after an extensive and thorough examination of the laboratory's capabilities.

The Heat Flow Meter Apparatus is a LaserComp Fox600 unit widely considered to be one of the most appropriate, precise and accurate instruments available. The Fox600 was designed in accordance with the requirements of ASTM C518-91 "Standard Test Method for Steady-state Heat Flux Measurements and Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus" and is applicable to those standards quoted in the AWTA Product Testing Laboratory's scope.